# Atmel EDBG-based Tools Protocols
TPI Protocol

## ID definitions

This section includes the header file defining the different command, response and event IDs for the TPIPROTOCOL. It also defines the different possible failure codes.

    // TPI commands
    #define TPI_CMD_ENTER_PROGMODE     0x01
    #define TPI_CMD_LEAVE_PROGMODE     0x02
    #define TPI_CMD_ERASE              0x03
    #define TPI_CMD_WRITE_MEM          0x04
    #define TPI_CMD_READ_MEM           0x05
    #define TPI_CMD_SET_PARAM          0x07

    // Memory types
    #define TPI_MEM_TYPE_APPL          1
    #define TPI_MEM_TYPE_FUSE          4
    #define TPI_MEM_TYPE_LOCKBITS      5

    // Erase modes
    #define TPI_ERASE_CHIP             1
    #define TPI_ERASE_APP              2
    #define TPI_ERASE_CONFIG           9

    // Error codes
    #define TPI_RSP_ERR_OK                 0
    #define TPI_RSP_ERR_FAILED             1
    #define TPI_RSP_ERR_COLLISION          2
    #define TPI_RSP_ERR_TIMEOUT            3
    #define TPI_RSP_ERR_ILLEGAL_PARAM      4

    // TPI parameters
    #define TPI_PARAM_NVMCMD_ADDR      0x03
    #define TPI_PARAM_NVMCSR_ADDR      0x04

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